//+------------------------------------------------------------------+
//|                                                   Instrument.mq4 |
//|                                 Copyright © 2012 by Mike Zhitnev |
//|                                           http://Forex-Robots.ru |
//|        Создание торговых роботов, индикаторов, скриптов для Вас! |
//|      Expert advisors, indicators, scripts: admin@forex-robots.ru |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2012 Mike Zhitnev"
#property link      "http://Forex-Robots.ru"

#include <stdlib.mqh>
#include <WinUser32.mqh>

#property indicator_chart_window
#property indicator_buffers 4

#property indicator_color1 Aqua
#property indicator_color2 Red
#property indicator_color3 Aqua
#property indicator_color4 Red

#property  indicator_width1 2
#property  indicator_width2 2

double Line1[],Line2[],Line3[],Line4[];

extern string Instrument="GBPUSD";
extern int HistBars=10000;
extern int Diffr=0;

datetime LastTime,LastTime2;

int TimeFrame=0;
int Transf=0;
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
   SetIndexStyle(0,DRAW_HISTOGRAM,0,3);
   SetIndexBuffer(0,Line1);
   SetIndexShift(0,0);

   SetIndexStyle(1,DRAW_HISTOGRAM,0,3);
   SetIndexBuffer(1,Line2);
   SetIndexShift(1,0);

   SetIndexStyle(2,DRAW_HISTOGRAM,0,1);
   SetIndexBuffer(2,Line3);
   SetIndexShift(2,0);

   SetIndexStyle(3,DRAW_HISTOGRAM,0,1);
   SetIndexBuffer(3,Line4);
   SetIndexShift(3,0);

   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
  {
   int counted_bars=IndicatorCounted();
   if(counted_bars<0) return(-1);
   if(counted_bars>0) counted_bars--;
   int limit=Bars-counted_bars;
   if(counted_bars==0) limit-=1+1;

   int i=limit;
   while(i>=0)
     {
      double H,L,O,C,Delta;
      int Index;

      Index=iBarShift(Instrument,TimeFrame,Time[i]);

      H = iHigh (Instrument, TimeFrame, Index);
      L = iLow  (Instrument, TimeFrame, Index);
      O = iOpen (Instrument, TimeFrame, Index);
      C = iClose(Instrument, TimeFrame, Index);

      if(TimeDay(Time[i])!=TimeDay(Time[i+1]))
        {
         Delta=iOpen(Instrument,TimeFrame,Index)-Open[i];
        }

      H = H - Delta;
      O = O - Delta;
      C = C - Delta;
      L = L - Delta;

      if(C>O)
        {
         Line1[i]=C; Line2[i]=O;
         Line3[i]=H; Line4[i]=L;
        }
      else
      if(C<O)
        {
         Line1[i]=C; Line2[i]=O;
         Line3[i]=L; Line4[i]=H;
        }
      else
      if(C==O)
        {
         Line1[i]=O; Line2[i]=Line1[i]+0.01*Point;
         Line3[i]=L; Line4[i]=H;
        }
      i--;
     }

   double RZM=High[0]-Low[0];
   if(Diffr!=0 && RZM>Diffr*Point && Time[0]!=LastTime)
     {
      Alert("Внимание! Движение по "+Symbol());
      LastTime=Time[0];
     }

   double RZ= iHigh(Instrument,TimeFrame,0)-iLow(Instrument,TimeFrame,0);
   if(Diffr!=0 && RZ>Diffr*MarketInfo(Instrument,MODE_POINT) && iTime(Instrument,TimeFrame,0)!=LastTime2)
     {
      Alert("Внимание! Движение по "+Instrument);
      LastTime2=iTime(Instrument,TimeFrame,0);
     }

   return(0);
  }
//+------------------------------------------------------------------+